diff options
| author | Gabriel Somlo <somlo@cmu.edu> | 2014-11-14 00:37:39 +0000 |
|---|---|---|
| committer | jljusten <jljusten@Edk2> | 2014-11-14 00:37:39 +0000 |
| commit | d55004dac9c762fa01c5656f7a2e6132ed7bfe38 (patch) | |
| tree | afcfd701801ba502072c80477bd8ad4238149533 /OvmfPkg/PlatformPei | |
| parent | 97380beb15249f6abf4250ccccbae0f740649985 (diff) | |
| download | edk2-platforms-d55004dac9c762fa01c5656f7a2e6132ed7bfe38.tar.xz | |
OvmfPkg: Add PCD for Host Bridge dev. ID (PcdOvmfHostBridgePciDevId)
Set from PEI, this PCD allows subsequent stages (specifically
DXE_DRIVER and DXE_RUNTIME_DRIVER) to infer the underlying platform
type (e.g. PIIX4 or Q35/MCH) without the need to further query the
Host Bridge for its Device ID.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16374 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/PlatformPei')
| -rw-r--r-- | OvmfPkg/PlatformPei/Platform.c | 3 | ||||
| -rw-r--r-- | OvmfPkg/PlatformPei/PlatformPei.inf | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c index d8a7c21ae0..1940e01640 100644 --- a/OvmfPkg/PlatformPei/Platform.c +++ b/OvmfPkg/PlatformPei/Platform.c @@ -245,7 +245,7 @@ MiscInitialization ( BuildCpuHob (36, 16);
//
- // Query Host Bridge DID to determine platform type
+ // Query Host Bridge DID to determine platform type and save to PCD
//
HostBridgeDevId = PciRead16 (OVMF_HOSTBRIDGE_DID);
switch (HostBridgeDevId) {
@@ -265,6 +265,7 @@ MiscInitialization ( ASSERT (FALSE);
return;
}
+ PcdSet16 (PcdOvmfHostBridgePciDevId, HostBridgeDevId);
//
// If PMREGMISC/PMIOSE is set, assume the ACPI PMBA has been configured (for
diff --git a/OvmfPkg/PlatformPei/PlatformPei.inf b/OvmfPkg/PlatformPei/PlatformPei.inf index a5fa9b5004..0307bca913 100644 --- a/OvmfPkg/PlatformPei/PlatformPei.inf +++ b/OvmfPkg/PlatformPei/PlatformPei.inf @@ -73,6 +73,7 @@ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfLockBoxStorageBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfLockBoxStorageSize
gUefiOvmfPkgTokenSpaceGuid.PcdGuidedExtractHandlerTableSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdS3AcpiReservedMemorySize
gEfiMdePkgTokenSpaceGuid.PcdGuidedExtractHandlerTableAddress
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize
|